//
// Created by Administrator on 2021/5/20.
//

#include "iostream"

using namespace std;

int main(){

    //add sub mul chu
    int a1 = 10;
    int b1 = 3;

    cout << a1 + b1 << endl;
    cout << a1 - b1 << endl;
    cout << a1 * b1 << endl;
    cout << a1 / b1 << endl;

    //point

    double d1 = 0.50;
    double d2 = 0.25;

    cout << d1 / d2 << endl;

    system("pause");

    return 0;
}